Underground swinging-type automatic intermittent water pump-up tool

The invention provides an underground swinging-type automatic intermittent water pump-up tool, comprising a spindle, an upper joint, a lower joint and an ejector rod. A through hole is formed in the spindle, the upper joint and the lower joint are arranged at two ends of the spindle, the ejector rod...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU FENG, FENG PENGXIN, XU WENLONG, HANG JIANCHUN, GU CHENGYI, LI YANBIN, CAO YI, HAN XINGGANG, WANG XIAORONG, LAI HAITAO, TAN PO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention provides an underground swinging-type automatic intermittent water pump-up tool, comprising a spindle, an upper joint, a lower joint and an ejector rod. A through hole is formed in the spindle, the upper joint and the lower joint are arranged at two ends of the spindle, the ejector rod penetrates through the interiors of the spindle, the upper joint and the lower joint, one end of the ejector rod extends outside the upper joint, and the other end of the ejector rod is connected with a check valve. The check valve is arranged in the lower joint, is used for opening and closing the internal channel of the spindle, and moves in the lower joint up and down. The upper joint and the lower joint are respectively provided with a flow passing slot, and a hood is connected with the lower end of the lower joint. A slip sleeves the external surface of the spindle between the upper joint and the lower joint. The underground swinging-type automatic instant water pump-up tool has the advantages that the structure is simple, the use is convenient, the time for opening and closing a well can be controlled without labors, and gas well fluid is automatically pumped up and discharged without the external force by only depending on self power of a well shaft and a special internal structure of the tool. In addition, because a well mouth does not need to be provided with a control valve, the cost is reduced, the production time is prolonged, and the purpose of highly effective production of a gas well is realized.